include/wx/helpbase.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        helpbase.h
   3 // Purpose:     Help system base classes
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart and Markus Holzem
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_HELPBASEH__
  13 #define _WX_HELPBASEH__
  14
  15 #ifdef __GNUG__
  16 #pragma interface "helpbase.h"
  17 #endif
  18
  19 #include "wx/defs.h"
  20 #include "wx/object.h"
  21 #include "wx/string.h"
  22 #include "wx/gdicmn.h"
  23 #include "wx/frame.h"
  24
  25 #if wxUSE_HELP
  26
  27 // Flags for SetViewer
  28 #define wxHELP_NETSCAPE     1
  29
  30 // Defines the API for help controllers
  31 class WXDLLEXPORT wxHelpControllerBase: public wxObject
  32 {
  33   DECLARE_CLASS(wxHelpControllerBase)
  34
  35  public:
  36   inline wxHelpControllerBase() {}
  37   inline ~wxHelpControllerBase() {};
  38
  39   // Must call this to set the filename and server name.
  40   // server is only required when implementing TCP/IP-based
  41   // help controllers.
  42   virtual bool Initialize(const wxString& WXUNUSED(file), int WXUNUSED(server) ) { return FALSE; }
  43   virtual bool Initialize(const wxString& file) { return FALSE; }
  44
  45   // Set viewer: only relevant to some kinds of controller
  46   virtual void SetViewer(const wxString& WXUNUSED(viewer), long WXUNUSED(flags) = 0) {}
  47
  48   // If file is "", reloads file given  in Initialize
  49   virtual bool LoadFile(const wxString& file = "") = 0;
  50   virtual bool DisplayContents(void) = 0;
  51   virtual bool DisplaySection(int sectionNo) = 0;
  52   virtual bool DisplayBlock(long blockNo) = 0;
  53   virtual bool KeywordSearch(const wxString& k) = 0;
  54   /// Allows one to override the default settings for the help frame.
  55   virtual void SetFrameParameters(const wxString &title,
  56                                    const wxSize &size,
  57                                    const wxPoint &pos = wxDefaultPosition,
  58                                    bool newFrameEachTime = FALSE)
  59       {
  60          // does nothing by default
  61       }
  62    /// Obtains the latest settings used by the help frame and the help
  63    /// frame.
  64    virtual wxFrame *GetFrameParameters(wxSize *size = NULL,
  65                                    wxPoint *pos = NULL,
  66                                    bool *newFrameEachTime = NULL)
  67       {
  68          return (wxFrame*) NULL;// does nothing by default
  69       }
  70
  71   virtual bool Quit(void) = 0;
  72   virtual void OnQuit(void) {};
  73 };
  74
  75
  76 /* By default, if wxHTML is compiled in, use the
  77    wxHelpControllerHtml. If not, use the external help controller.
  78    (of course, we shouldn't do it for wxMSW)
  79 */
  80 #ifndef __WXMSW__
  81 #if wxUSE_HTML
  82 #   include "wx/generic/helpwxht.h"
  83 #   define wxHelpController wxHelpControllerHtml
  84 #   define sm_classwxHelpController sm_classwxHelpControllerHtml
  85 #else
  86 #   include "wx/generic/helpext.h"
  87 #   define wxHelpController wxExtHelpController
  88 #   define sm_classwxHelpController sm_classwxExtHelpController
  89 #endif
  90 #endif // wxMSW
  91
  92 #endif // wxUSE_HELP
  93 #endif
  94     // _WX_HELPBASEH__